View Compilation Error

0_0_15153129_7389\Main.java:1: 错误: 非法字符: '#'
#include <iostream>
^
0_0_15153129_7389\Main.java:1: 错误: 需要class, interface或enum
#include <iostream>
         ^
0_0_15153129_7389\Main.java:2: 错误: 非法字符: '#'
#include <boost/multiprecision/cpp_int.hpp>
^
0_0_15153129_7389\Main.java:5: 错误: 需要class, interface或enum
using namespace boost::multiprecision;
^
0_0_15153129_7389\Main.java:7: 错误: 需要class, interface或enum
int main()
^
0_0_15153129_7389\Main.java:10: 错误: 需要class, interface或enum
    cin>>a>>b;
    ^
0_0_15153129_7389\Main.java:11: 错误: 需要class, interface或enum
    cout<<a+b<<endl;
    ^
0_0_15153129_7389\Main.java:12: 错误: 需要class, interface或enum
}
^
8 个错误